Empire Comfort Systems DVL36BP30 Series Installation Instructions Manual page 43

DVVK-4FV DIRECT VENT TERMINATION KIT (CONT'D)
STEP-BY-STEP INSTALLATION
1. Unpack vent components and check all items for shipping
damage.
2. For this venting system to operate as designed it is dependent
on the use of all parts and procedures detailed in these instruc-
tions. Failure to follow these instructions may potentially affect
the performance of this vent system and the attached appliance.
3. As per the fireplace manufacturer's instructions, replace the
existing 6-5/8 inch diameter fireplace vent adapter with the 7
inch diameter flex vent fireplace adapter included in the vent
kit. Install the adapter collar with the screws removed from
the standard fireplace collar. Refer to the fireplace manual for
additional information on the vent collar removal and installation.
4. Once the fireplace location has been determined, mark the
ceiling where the flex vent will pass through. Cut an opening
for installation of the firestop thimble assembly. The opening
must measure a minimum of 9-1/2 inch x 9-1/2 inch square.
See Figure 57.
41978-1-1220
Figure 57
5. Next, determine the location for the cutout in the roof opening.
This opening must be large enough to provide a minimum 1
inch air space clearance from the vertical vent pipe to any
combustible framing.
6. Install the Firestop/Thimble assembly to the framed opening
in the ceiling using common nails or screws.
NOTICE: The thimble assembly is adjustable up or down as
needed within the firestop. It is also designed with a pivoting
firestop for use with 0 - 3/12 pitch cathedral ceilings.
7. To begin vent system assembly, first layout all the vent components
on the floor in the order in which they will be assembled.
8. Stretch the 4 inch diameter inner flex flue and 7 inch diameter
outer flex vent to the maximum length of 6 feet.
9. Install the spring spacers provided around the 4 inch diameter
flex flue at 1 foot intervals, then slide the flue pipe with spac-
ers into the 7 inch diameter outer flex vent pipe. Make sure
the springs are spaced evenly starting at 12 inches from the
fireplace collar. See Figure 58.
Figure 58
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